Fan assembling structure and heat dissipating device

ABSTRACT

The invention provides a fan assembling structure and a heat dissipating device. The fan assembling structure comprises a first assembling board for assembling a fan thereon and a second assembling board connected to the first assembling board, the fan comprising a frame and blades disposed in the frame assembled to the first assembling board, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims benefits of Chinese Patent Application No.201210409085.X, filed on Oct. 23, 2012 in the State IntellectualProperty Office of China, the disclosure of which is incorporated hereinby reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to a fan assembling structure and a heatdissipating device.

BACKGROUND

The heat generated from different electronic devices operation increaseswith higher working frequency. As a result, it is important to removeheat from electronic devices.

The conventional fan is provided with four fixing holes at four cornersof its frame. Four bolts are inserted in the fixing holes for fixing thefan. However, tools such as a screwdriver and four times of repeatscrewing are required to fix the fan, thereby resulting in high laborhours. Besides, when the fan is fixed by screws, the fixing hole may bedamaged from improper torque force by the screwdriver, and the fan maybe unseated. Due to repeatedly assembling and detaching, theself-tapping screw and the plastic frame may be worn out, and the entirefan may be damaged.

SUMMARY

Embodiments of the invention provide a fan assembling structure to solvethe labor-costing, bad-assembling and worn-out problems duringassembling the fan in the conventional technology.

One aspect of the invention provides a fan assembling structurecomprising a first assembling board for assembling a fan thereon and asecond assembling board connected to the first assembling board, the fancomprising a frame and blades disposed in the frame assembled to thefirst assembling board, the frame having an upper board, a lower boardand a circular connector connected between the upper board and the lowerboard, the lower board including a first side edge, a second side edge,a third side edge and a fourth side edge in sequential connection. Thefirst assembling board comprises a bottom plate and a side plateperpendicular to the bottom plate, the bottom plate comprises a firstside edge, a second side edge, a third side edge and a fourth side edgein sequential connection, the side plate is connected to the fourth sideedge of the bottom plate, and the bottom plate comprises a ventilatingarea corresponding to the fan, and two bending edges are disposed atopposite sides of the ventilating area along a direction parallel to thefirst side edge and the third side edge of the bottom plate and extendtowards the ventilating area to form a sliding slot between the twobending edges and the bottom plate, the slide slot is used for slidingthe fan therethrough from the second side edge of the bottom plate onthe first assembling board to a predetermined position.

For example, the bottom plate and the side plate are integrally formed.

For example, a distance between the second side edge and the fourth sideedge of the bottom plate is equal to a distance between the second sideedge and the fourth side edge of the lower board of the fan.

For example, the side plate comprises a protrusion protruding inwardlyat a side facing the fan and between the two bending edges, and thesecond assembling board comprises a protrusion protruding inwardly at aside facing the fan and between the two bending edges.

For example, a distance between upper ends of the two protrusions andthe bottom plate is less than or equal to a distance between the lowersurface of the upper board and the lower surface of the lower board ofthe fan.

For example, the two protrusions abut against the circular connector ofthe fan.

For example, each of the bending edges comprises a blocking portionextending perpendicularly from the bottom plate and a horizontal portionconnected to the blocking portion, a distance between the two blockingportions is equal to a distance between the first side edge and thethird side edge of the lower board of the fan.

For example, a distance between the horizontal portion of each bendingedge and the bottom plate is equal to a thickness of the lower board.

For example, a distance between the horizontal portion of each bendingedge and the bottom plate is equal to a distance between the uppersurface of the upper board and the lower surface of the lower board.

For example, the bending edge comprises an inclined portion forming anangle of less than 90 degrees with respect to the bottom plate forholding the first side edge and the third side edge of the lower board.

Another aspect of the invention provides a heat dissipating devicecomprising a fan and a fan assembling structure, the fan comprising aframe and blades disposed in the frame, the frame having an upper board,a lower board and a circular connector connected between the upper boardand the lower board, the lower board including a first side edge, asecond side edge, a third side edge and a fourth side edge in sequentialconnection, the assembling structure comprising a first assembling boardfor assembling the fan and a second assembling board connected to thefirst assembling board, the first assembling board comprising a bottomplate and a side plate perpendicular to the bottom plate, the bottomplate comprises a first side edge, a second side edge, a third side edgeand a fourth side edge in sequential connection, the side plate isconnected to the fourth side edge of the bottom plate. The bottom platecomprises a ventilating area corresponding to the fan, and two bendingedges are disposed at the periphery of the ventilating area along thedirection parallel to the first side edge and the third side edge andextend towards the ventilating area to form a sliding slot between thetwo bending edges and the bottom plate, the slide slot is used forsliding the fan therethrough from the second side edge of the bottomplate on the first assembling board to a predetermined position.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective diagram showing a fan in an embodiment of theinvention.

FIG. 2 is a perspective diagram showing the first assembling board in anembodiment of the invention.

FIG. 3 is a perspective diagram showing the combination of the fan andthe first assembling board in an embodiment of the invention.

FIG. 4 is a perspective diagram showing the fan assembling structure inan embodiment of the invention.

FIG. 5 is a side view diagram showing the combination of the fan and thefirst assembling board in an embodiment of the invention.

FIG. 6 is a side view diagram showing the combination of the fan and thefirst assembling board in another embodiment of the invention.

FIG. 7 is a side view diagram showing the combination of the fan and thefirst assembling board in still another embodiment of the invention.

DETAILED DESCRIPTION

Hereinafter, in the embodiments described in detail referring to theaccompanying drawing, the fan 300 is assembled between a firstassembling board 100 such as a lower cover of a chassis and a secondassembling board 200 such as an upper cover of the chassis, but theinvention is not limited thereto.

As shown in FIG. 1 through FIG. 4, an embodiment provides a fanassembling structure including a first assembling board (such as a lowercover of a chassis) 100, a second assembling board 200 (such as an uppercover of the chassis) and a fan 300 assembled to the first assemblingboard 100.

The fan 300 comprises a frame 310 and blades 320 disposed in the frame310. The frame 310 comprises an upper board 311 and a lower board 312spaced with a certain distance and a circular connector 313 connectedbetween the upper board 311 and the lower board 312. The lower board 312comprises a first side edge 3121, a second side edge 3122, a third sideedge 3123 and a fourth side edge 3124 in sequential connection andconstituting a quadrangle (usually a square).

The first assembling board 100 comprises a bottom plate 110 and a sideplate 120 perpendicular to the bottom plate 110. The bottom plate 110comprises a first side edge 1101, a second side edge 1102, a third sideedge 1103 and a fourth side edge 1104 in sequential connection andconstituting a quadrangle (usually a rectangle). The distance betweenthe second side edge 1102 and the fourth side edge 1104 of the bottomplate 110 is equal to the distance between the second side edge 3122 andthe fourth side edge 3124 of the lower board 312. The side plate 120 isconnected to the fourth side edge 1104 of the bottom plate 110. In theembodiment, the bottom plate 110 and the side plate 120 are integrallyformed. In other embodiments, the side plate 120 may be fixed to a sideedge of the bottom plate 110 by riveting or welding. The bottom plate110 is provided with a ventilating area 111 formed by a plurality ofthrough holes on the bottom plate 110, and the position of theventilating area 111 corresponds to the position of the fan 300. Twobending edges 112 are disposed on opposite sides of the ventilating area111 along the direction parallel to the first side edge 1101 and thethird side edge 1103 and bending towards the ventilating area 111,thereby forming a sliding slot 113 between the two bending edges 112 andthe bottom plate 110. In an embodiment of the invention, the bendingedges 112 are formed by punching the bottom plate 110. The bending edges112 may also be disposed at the bottom plate 110 by other methods suchas riveting. The second assembling board 200 may be assembled (such asby buckling) to the first assembling board 110, namely the secondassembling board 200 is connected to the second side edge 1102 of thebottom plate 110.

A side of the side plate 120 is provided with a inward protrusion 121towards the fan (as shown in FIG. 2) and between the two bending edges112, and a side of the second assembling board 200 is provided with ainward protrusion 201 towards the fan (as shown in FIG. 4) and betweenthe two bending edges 112, the distance between the upper ends of thetwo protrusions 121 and 201 is less than or equal to the distancebetween the lower surface of the upper board 311 and the lower surfaceof the lower board 312, namely the positions of the two protrusions 121and 201 correspond to the circular connector 313 of the fan 300. Theprotrusion 121 can be formed by punching the side plate 120, and theprotrusion 201 can be formed by punching the second assembling board200.

As shown in FIG. 5, in an embodiment, each bending edge 112 comprises ablocking portion 1121 extending perpendicularly from the bottom plate110 and a horizontal portion 1122 connected to the blocking portion1121. The distance between the blocking portions 1121 of the two bendingedges 112 (the width of the sliding slot 113) is equal to the distancebetween the first side edge 3121 and the third side edge 3123 of thelower board 312. The distance between the horizontal portion 1122 of thebending edge 112 and the bottom plate 110 (the height of the slidingslot 113) is equal to the thickness of the lower board 312. As shown inFIG. 6, in another embodiment, the bending edge 112 comprises aninclined portion 1123 forming an angle of less than 90 degrees withrespect to the bottom plate 110 for holding the first side edge 3121 andthe third side edge 3123 of the lower board 312. During assembling, thefan 300 is pushed from the second side edge 1102 of the bottom plate110, the first side edge 3121 and the third side edge 3123 of the lowerboard 312 are engaged into the sliding slot 113 and slide along thesliding slot 113 until the fan 300 abuts against the side plate 120 andthe protrusion 121 abuts against the circular connector 313. The secondassembling board 200 is then assembled (such as by buckling) to thefirst assembling board 100, the protrusion 201 abuts against thecircular connector 313 to fix the fan to the predetermined position.

As shown in FIG. 7, in still another embodiment, each bending edge 112comprises a blocking portion 1121 extending perpendicularly from thebottom plate 110 and a horizontal portion 1122 connected to the blockingportion 1121. The distance between the blocking portions 1121 of the twobending edges 112 is equal to the distance between the first side edge3121 and the third side edge 3123 of the lower board 312. The distancebetween the horizontal portion 1122 of the bending edge 112 and thebottom plate 110 is equal to the distance between the upper surface ofthe upper board 313 and the lower surface of the lower board 312. Duringassembling, the fan 300 is pushed from the second side edge 1102 of thebottom plate 110, the upper board 311 and the lower board 312 areengaged into the sliding slot 113 and slide along the sliding slot 113until the fan 300 abuts against the side plate 120 and the protrusion121 abuts against the circular connector 313.

The second assembling board 200 is then assembled (such as by buckling)to the first assembling board 100, and the protrusion 201 abuts againstthe circular connector 313 to fix the fan to the predetermined position.

According to an embodiment of the invention, a heat dissipating devicecomprising a fan and a fan assembling structure as discussed above isprovided.

One or more embodiments of the invention provides one or more of thefollowing beneficial effects.

When the fan is assembled, the fan is guided by the sliding slot, and isabutted and fixed by the side plate and its protrusion, and the secondassembling board and its protrusion. As a result, other fixing parts arenot needed, and the labor-costing is reduced.

The bad-assembling and worn-out risk of the fan are also decreased.

The assembling structure according to exemplary embodiments may be usedwithout changing the existing structure of the fan.

Although the disclosure has been described as above in reference toseveral exemplary embodiments, it is to be understood that the termsused therein are just illustrative and exemplary rather thanrestrictive. Since the disclosure can be applied in various formswithout departing from the spirit or principle of the invention, it isto be understood that the abovementioned embodiments will not be limitedto any specific detail mentioned above, rather, they should be construedbroadly in the spirit or concept of the invention defined by theappended claims. Therefore, the present invention aims to cover all themodifications or variations falling within the protection scope definedby the appended claims.

What is claimed is:
 1. A fan assembling structure, comprising a firstassembling board for assembling a fan thereon and a second assemblingboard connected to the first assembling board, the fan comprising aframe and blades disposed in the frame assembled to the first assemblingboard, the frame having an upper board, a lower board and a circularconnector connected between the upper board and the lower board, thelower board including a first side edge, a second side edge, a thirdside edge and a fourth side edge in sequential connection, wherein, thefirst assembling board comprises a bottom plate and a side plateperpendicular to the bottom plate, the bottom plate comprises a firstside edge, a second side edge, a third side edge and a fourth side edgein sequential connection, the side plate is connected to the fourth sideedge of the bottom plate, and the bottom plate comprises a ventilatingarea corresponding to the fan, and two bending edges are disposed atopposite sides of the ventilating area along a direction parallel to thefirst side edge and the third side edge of the bottom plate and extendtowards the ventilating area to form a sliding slot between the twobending edges and the bottom plate, the slide slot is used for slidingthe fan therethrough from the second side edge of the bottom plate onthe first assembling board to a predetermined position.
 2. The fanassembling structure according to claim 1, wherein the bottom plate andthe side plate are integrally formed.
 3. The fan assembling structureaccording to claim 1, wherein a distance between the second side edgeand the fourth side edge of the bottom plate is equal to a distancebetween the second side edge and the fourth side edge of the lower boardof the fan.
 4. The fan assembling structure according to claim 1,wherein the side plate comprises a protrusion protruding inwardly at aside facing the fan and between the two bending edges, and the secondassembling board comprises a protrusion protruding inwardly at a sidefacing the fan and between the two bending edges.
 5. The fan assemblingstructure according to claim 4, wherein a distance between upper ends ofthe two protrusions and the bottom plate is less than or equal to adistance between the lower surface of the upper board and the lowersurface of the lower board of the fan.
 6. The fan assembling structureaccording to claim 4, wherein the two protrusions abut against thecircular connector of the fan.
 7. The fan assembling structure accordingto claim 1, wherein each of the bending edges comprises a blockingportion extending perpendicularly from the bottom plate and a horizontalportion connected to the blocking portion, a distance between the twoblocking portions is equal to a distance between the first side edge andthe third side edge of the lower board of the fan.
 8. The fan assemblingstructure according to claim 7, wherein a distance between thehorizontal portion of each bending edge and the bottom plate is equal toa thickness of the lower board.
 9. The fan assembling structureaccording to claim 7, wherein a distance between the horizontal portionof each bending edge and the bottom plate is equal to a distance betweenthe upper surface of the upper board and the lower surface of the lowerboard.
 10. The fan assembling structure according to claim 1, whereinthe bending edge comprises an inclined portion forming an angle of lessthan 90 degrees with respect to the bottom plate for holding the firstside edge and the third side edge of the lower board.
 11. A heatdissipating device comprising a fan and a fan assembling structure, thefan comprising a frame and blades disposed in the frame, the framehaving an upper board, a lower board and a circular connector connectedbetween the upper board and the lower board, the lower board including afirst side edge, a second side edge, a third side edge and a fourth sideedge in sequential connection, the assembling structure comprising afirst assembling board for assembling the fan and a second assemblingboard connected to the first assembling board, the first assemblingboard comprising a bottom plate and a side plate perpendicular to thebottom plate, the bottom plate comprises a first side edge, a secondside edge, a third side edge and a fourth side edge in sequentialconnection, the side plate is connected to the fourth side edge of thebottom plate, wherein the bottom plate comprises a ventilating areacorresponding to the fan, and two bending edges are disposed at theperiphery of the ventilating area along the direction parallel to thefirst side edge and the third side edge and extend towards theventilating area to form a sliding slot between the two bending edgesand the bottom plate, the slide slot is used for sliding the fantherethrough from the second side edge of the bottom plate on the firstassembling board to a predetermined position.